In this lab, a basic solution was created using Iodine and Potassium Iodate, to measure the amount of vitamin C in an organic and non-organic orange. The solution was then dripped from a burette into the two samples of orange juice, both of which were extracted from oranges using a Buchner Funnel. The 1% Lugol Iodine solution turned the juice blue when the Titration was complete, allowing the two samples to be compared on the amount of solution that was needed to complete the Titration. It was found that it took more indicator to produce the desired reaction in the non-organic than in the organic orange, meaning that there was a higher concentration of vitamin C in the organic orange. This shows that buying organic can really be worth the extra money, because it is certainly worth the higher amount of vitamin C.
By: Reid Kett
In this lab, a basic solution was created using Iodine and Potassium Iodate, to measure the amount of vitamin C in an organic and non-organic orange. The solution was then dripped from a burette into the two samples of orange juice, both of which were extracted from oranges using a Buchner Funnel. The 1% Lugol Iodine solution turned the juice blue when the Titration was complete, allowing the two samples to be compared on the amount of solution that was needed to complete the Titration. It was found that it took more indicator to produce the desired reaction in the non-organic than in the organic orange, meaning that there was a higher concentration of vitamin C in the organic orange. This shows that buying organic can really be worth the extra money, because it is certainly worth the higher amount of vitamin C.
Keywords:
Titration, Vitamin C, 1% Lugol, Basic and Acidic, Buchner Funnel, Orange, Organic, Non-Organic